Automatically-operated stopping device.



E. L. GOLLON d: G. TABARD.

AUTOMATIGALLY OPERATBD STOPPING DEVICE.

APPLIGAVTION FILED SEPT. 1s, 1907.

994.443. Patented .rune 6,1911.

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EJL. COLLON & G. TABARD. AUTOMATIGALLY ofBRATED sToPPING DEVICE. APPLICATION FILED SEPT. 16, 1907.

Patented June 6, 1911.

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E. L. GOLLON & G. TABARD.

AUTOMATICALLY OPBRATBD STOPPING DEVICE.

APPLIOMION FILED SEPT. 1e, 1907.

994,443, t Patented Jung 6,1911.`

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UNITED sTATEs PATENT oEEioE. n

EUGENE-Louis coLEoN, 0E oANNEs, AND- GEoEGEs TABAED, or LYoN,EEANcE.

AUTOMATICALLY-OPERATED STOPPING- DEVICE.

' ments in Automatically-Operated Stopping Devices; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to lett-ers or figures of reference marked thereon, which' form a part of this specification.

This invention relates to improvements in automatically operated stopping devices particularly adapted to be connected with hydro-extractors and like apparatus for automatically stopping the operation thereof as soon as the outflow of water from such apparatus falls below a given limit, which latter is easily regulated corresponding to the degree of hydro-extraction it is desired to obtain. The throwing out of gear and the arrest of the apparatus are to this end governed by the falling of a counterweighn or the rebound of a spring, caused by a disengagement brought about by the reduced flow of the current of water from the extractor.

The water flowing from the extractor is received in an exterior reservoir from which it escapes by an orice of variable crosssection and by overflow orifices. This water should then take a certain level in the reservoir so that the low through the reduced orifice and through the overflow orifices becomes equal to the outflow from vthe extractor which level remains therefore weight or spring and the falling of the weight or the flexure of the, spring produces the throwing out of the gear of the apparatus and if desired, the vapplication of a brake in such manner as to produce the rapid stoppage of the machine. The weight or the spring may at the same time operate Specification of Letters Patent.

Application led September 16, 1907.

Patented June 6, 1911.

Serial No. 393,176.

an indicator or annunciator for informing the attendant of the stoppage, and if desired a registering apparatus which will ,A show the number of extractions performed in a given length of time.

r1 he accompanying drawings illustrate by way of example one construction of apparatus for carrying out this invent-ion, in

which the throwing out of gear of the hydro-extractor is accomplished by a counterweight falling freely in a chute.

Figure 1 is a front elevation partly in section of such a machine. elevation of the same. view of the same. Figs. 4 and 5 are respectively an elevation and a plan of the details of the releasing 'mechanism Figs. 6 and 7 are respectively a vertical section and plan of the controlling means for the reservoir valve, Fig. 6 being taken on line A-B of Fig. 7. Fig. 8 is a detail side view, partly in section of the mechanism for operating the hydro-extractor. Fig. 9 is an enlarged view of Fig. 4 with the ratchetwheel 37 removed. Fig. 10 is an enlarged 'view of Fig. 5 showing the parts in different positions, and Fig. 11 is a detail view Fig. 2 is a side ,K Fig. 3 is a plan of certain of the parts seen from the left of Fig. 9.

Referring more particularly to the draw-V ings 1 designates a base plate placedin the yground below the base of the hydro-extractor as 2. `Upon the plate is mounted a reservoir 3 which receives through a conduit 4, which communicates with the reservoir near its bottom, the water escaping from the hydro-extractor through a pipe 5 at the bottom of the latter. The over ow from the reservoir escapes through orices l6 at the top and water containing the soluble matter of the material treated in the hydroextractor Hows through a pipe 7 at the bottom of the reservoir, which pipe is custom arily connected with a sewer and the outilow of water through said pipe is controlled by a valve 8 which is operated by a rod 23 'arranged longitudinally of a vertical column 12 and terminated by a pointer 9 (Figs. 6 and 7), movable over a graduated sector 24. The sector and the upper guide for the rod 23 may be formed integral with a collar 25 adjustable upon the column 12 and capableof being fixed at any desired height. By preference the height of the .collar coincides with the base of the framing 2a mounted upon the hydro-extractor in order that t-he column may be connected to the latter by means of one or two stays 26, connected by the bolts used for attaching such framing to the extractor. This arrangement has the advantage of augmenting the stability of the whole mechanism, positioned at the foot ofthe hydroextractor. A spring 50 is advantageously mounted on the rod 23 in such a manner as to insure the maintenance of the valve in the position in which it has been placed by means of the pointer 9.

The column 12 forms a bearing for a shaft 13 which carries at one extremity a peg clutch-plate 14 which engages with the arms of a wheel 15 which forms a coperating clutch-member to throw the driving members, hereinafter described, of the hydroextractor into and out of gear; the shaft 13 carries moreover a sprocket wheel 16, a drum 17 and a hand operated wheel 18. All of these parts may be adjustably connected to the shaft 13 by bolts to permit of their application to different sizes or forms of extractors. The sprocket 16 is connected by a chain 19 with a sprocket 20, Fig. 1, forming part of the releasing mechanism; the drum 17 serves to wind up a cable 27 carrying at its extremity within the column 12 a counterweight 21.

The column 12 is adjustable in height and is xed by clamping it in a socket 22 on the base plate 1. By sliding the column in this socket it is possible to cause the axis of the shaft 13 to coincide with the axis of a screw 56 and if there exists a defect in the alinement of the axes this defect is compensated for by t-he play allowed the pegs of the plate 14 between the arms of the controllingv wheel 15.

The driving mechanism for the extract-or consists, as customary, of two friction wheels 51 and 52, which are controlled, for example, by means of a pulley (not shown) carried on shaft 53, and to which the friction wheel 51 is secured. The proper degree of friction between the two friction wheels is produced by a laminated spring 54 whose free end presses on one end of shaft 53 in such a manner as to force the friction wheel 51, secured to said shaft 53, against the friction wheel 52. A nut 55, carried by the spring 54 and through which passes a screw 56, is under the control of the wheel 15, and permits the regulation of the pressure of the spring. It is thus understood that the rotation to the right of the shaft 13, which rotation is accomplished by hand with the aid of the hand wheel 18, produces at the same time that the counterweight 21 ascends an application of force on the spring 54 at the end of the shaft 53, and consequently the pressure of the wheel 51 against the cone 52. On the contrary, the descent of the counterweight, which causes the-shaft 13 to turn to the left, pulls out the nut 55 and produces a cessation of the pressure of wheel 51 on the cone 52. The plat-e 14 is always in engagement with the hand wheel 15 by means of the pins.

The fall of the weight 21 is advantageously limited by a stop, formed for example by a bolt or pin 28, which weight traverses the column 12 and as above stated turns the shaft 13 suficiently for producing the throwing out of gear of the hydro-extractor. The fall of the weight can moreover, if desired, be utilized vfor actuating an audible signal such as a bell 29 indicating the completion of the extraction and for causing, also automatically, the operation of a brake band 30, for assuring the stoppage of the hydro-extractor. To this end the counter-weight 21, during its descent acts u non a finger 31 which sounds the bell 29 ant also effects directly, by means of an auxiliary cable 32 attached to the chain 19, the contraction of the brake band 30. The length of the cable 32 will be determined in such a manner as to arrest the fall of the counterweight at the desired point that is to say against the pin 28, t-aking advantage for this purpose of the resistance of the brake in its braking posit-ion.

The releasing apparatus as it may be properly called, Figs. 4, 5, 9, 10 and 11 is mounted upon a support 33 on the reservoir 3, the support being provided at its center with a sleeve 34, serving as a guide for the rod 11 of a float 10 arranged in the interior of the reservoir. Perpendicularly to the sleeve 34 in a bearing thereon is mounted an axle 36 carrying the sprocket 20 and a ratchet wheel 37. In contact with the latter is a pawl 38 which is mounted upon a vertical pivot 39 and maintained in engagement with the ratchet wheel by a spring 41. The ratchet wheel 37 under the action of the weight 21, tends to turn in the direction of the arrow 42, and its teeth take against thelower face 43 of the pawl 38. The left hand extremity 44 of this pawl is articulated by a pivot 40, Fig. 9, and can only, owing to the form of the articulation, move above the body of the pawl and cannot become inclined below the same; said extremity being formed moreover with an inclined surface 57. rlhe float rod 11 carries a tappet 45 which projects through a longitudinal slot 35 formed in the sleeve 34 and which is adapted to come into engagement with the inclined surface 57 formed on the extremity 44 of the pawl 38.

The operation of the apparatus is as follows t-The different parts occupy the positions shown in thev drawings, that is to say the counterweight 21 raised to its highest I position, the ratchet wheel 37 engaged by the pawl 38, 'as shown'inFig.` 5, and at the same time the valve 8 is turned into a position corresponding to a predetermined degree of hydro-extraction. When the extraction commences the water flows copiously through the conduit 4 and the level rises in the reservoir 3. 'The area left open or free by the lcock 8 causes the water to take a certain' level, as indicated by the line 46, Fig. 1, in the reservoir so that the flow through the reduced port of the conduit 7 and the orifices 6 becomes equal. tothe outflow from the pipe 5 of the hydro-extractor; lthe valve 8 allows, then, a quantity of water to pass which is smaller than that supplied by the extractor during its operation. The iioat 1,0 is' now in its highest position and the tappet 45 which is carried by the rod 11 is above the articulated extremity 44 of the pawl 38 as shown in Fig. 4. When the extractor nears the end of its operation the valve 8 allows more liquid to run off thanis supplied by the extractor, the level falls in the reservoir 3, and with it the ioat 10, the rodll of which actuates by means of the tappet 45, the releasing mechanism placed above the reservoir. It can easily be understood that by conveniently regulating the opening of the cock 8, the release can be brought about more or less` quickly and in consequence the hydro-extractor is automatically arrested when any particular degree of dryness, which it is desired to obtain, is reached. To accomplish this it is only` necesary to place the index of the pointer 9`upon one division of the sector 24 corresponding to the degree of extraction desired; As the rodV 11 of the float descends the tappet 45 which projects out of the slot 35, meets the inclined surface 58, Figs. 9 and 10, the movable extremity 44 of the pawl 38, pushes over the latter and causes the pawl to swing about the vertical' pivot 39. The pawl 38 then disengages the teeth of the wheel 37, Fig. 10, which, thus freed, allows the counterweight 21 to fall thus bringing about the vrotation tothe left of the shaft 13 and consequently throws the gears 51, 52 out of contact. 'The fallof the weight causes the chain 19 to pull up the end of cable 32 connected thereto and to cause the brake 30 to`act, arresting'th'e rotation of the extractor; it produces also by means of the finger 31 the sounding of the bell 29 which announces to the attendant the end of the roperation and stoppageV of the machine. As the stoppage of the hydro-extractor is never sudden the lwater contained inthereservoir v3 atthe .moment of release continues to flow `out andv the float continues to descend. VAt the moment of complete stoppage the' float` has fallenk below the-level where the tappet 45 r`is. in contact with .the extremity ^44of 'the` pawl. The lat- "ter 4can ythen jagain Y move intoengagement K- with the ratchet wheel 37, Fig.'5, in'order to effect the arrestthereof when the machine h is thrown into gear again by means of the l wheel 18. When the water of a fresh operat-ion of the hydro-extractor arrives in the reservoir 3 the lioat 10 and its rod 11 rise again and the tappet 45 passes the pawl 38 without causing the latter to disengage the wheel 37 'as the movable extremity of the ypawl simply swings about itsaxis 40 and then falls again immediately the tappet has passed. The float 10 being returned to the highest point the whole of the mechanism is again ready to operate because the operation of the wheel 18 to place the machine in gear has also had the eifect'of raising the Iweight 21 a distance precisely equal to that through which it should fall in order to produce the throwing out olf gear;*this move- `ment of the weight 21 is moreoven determined exactly by the position of the pin 28 and it is limited'also by the acting of the lbrake 30 which by the cable 32' arrests the i movement of the chain 19.

. The mode of operation of the wheel 15 of the y hydro-extractor by means of a `peg clutch-plate 14 (the pegs passing between the arms of the wheel) facilitates greatly `the mounting of the device because it adapts itself to all hydro-extractors without any `preparation and without the necessityof beingfassured of the exact alinement of the axes to be connected.

As is apparent, the present disposition of parts is' absolutely independent of the hydro-extractor with which itis connected, and it can' adapt itself to all machines of this `kind without previous preparation `other than the digging of aV hole in which to place the'base plate 1 at the' desired level.

Various details of construction, such as the mode of actuating the brake of the exvtractor and the annunciating signal, can evidently be modifiedv o-r dispensed with; also the arrangement of thevcounterweight can be replaced by an arrangement of springs .or analogous arrangement, the flexure of fwhich should cause the automatic throwing out of gear ofthe apparatus. All thesev arrangements, `essentially variable in the lmethod of carrying them out, depend upon the kind of clutch and brake possessed by the machine and can naturally be varied without changing the principle of the invvention.` .f

,What we claim and desire to secure byv Letters Patent of the United States is:-

y1. A device4 of the character describedcomprising means capable of receiving a store of energy and of subsequently expending said energy, operative "connection be-.' tween said means and said device, a vertical adjustment-adapted to bring'said operativel connection to the level of said device,'a'lock v for said n1eans,fawatery receptacle havingan outlet, and means governed by the water level in said receptacle for releasing said lock, substantially as set forth.

2. A device of the character described comprising means capable of receiving a store of energy and of subsequently expending said energy, a lock for said means, a closed water receptacle having an outlet in its lower part and overflow orifices, and means governed by the water level in said receptacle for releasing said lock substantially as set forth.

3. A device of the character described comprising means capable of receiving a store of energy and of subsequently expending part of said energy, an annunciator in operative relation with said means and adapted to be operated by part of said energy, a lock for said means, a water receptacle having an outlet and means governed by the water level in said receptacle for releasing said lock, substantially as set forth.

4. A device of the character described comprising means capable of receiving a store of energy and of subsequently expending part of said energy, a brake, operative connection between the brake and means, whereby said brake is operated by the expenditure of part of said energy, a lock for said means, a water receptacle and means governed by the water level in said receptacle for releasing said lock substantially as set forth.

5. A device of the character described comprising means capable of receiving a store of energy and of subsequently expending said energy, a lock for said means, a wat-ver receptacle having an outlet, adjust.- able means for varying the capacity of said outlet, an indicator connected with the last named means for showing the adjustment effected, and means governed by the water level in said receptacle for releasing said lock substantially as set forth.

6.,A device of the character described comprising means capable of receiving a store of energy and of subsequently expending part of said energy, an annunciator in operative relation with said means and adapted to be operated by part of said energy, a brake, operative connection between said brake and said means whereby said brake is operated by the expenditure of part of said energy, a lock for said means, a water receptacle havingV an outlet, adjustable means for varying the capacity of said outlet, an indicator connected with the last named means for showing the adjustment effected, and means governed by the water level in said receptacle for releasing said lockY substantially as set forth.

7. A device of the character described comprising a shaft, a drum on said shaft, a` weight, suspension means for the `latter connected with the drum, a ratchet wheel r' driven from the shaft, a locking pawl for` `to permit the weight to fall and operate said device, substantially as set forth.

8. A device of the character described comprising a shaft to drive in both directions, a drum on the shaft, a weight, suspension means for the latter connected with the drum, a ratchet wheel driven from the shaft, a locking pawl for the ratchet, a water reservoir having a restricted outlet, a float in the reservoir, means for normally maintaining the pawl in locking position, and operative connection between the float and pawl for releasing the latter to permit the weight to fall and operate said device, substantially as set forth.

9. In a device of the character described, a shaft, a drum on said shaft, a weight, suspension means for the latter, connected with the drum, an audible signaling device, a trigger in the path of the weight adapted rto sound said signaling device, a ratchet wheel driven from said shaft, a locking pawl for said ratchet, a water reservoir having a restricted outlet, a float in said reservoir, and operative connection between said ioat and said pawlA forA releasing the latter to permit said weight to fall, substantially as set forth.

10. In a' device of the character described, a shaft, a drum on said shaft, a weight, suspension means for the latter connected with the drum, a brake, operative connection between said shaft and brake, a ratchet wheel driven from said shaft, a locking pawl for said ratchet, a water reservoir having a restricted outlet, a float in said reservoir, and operative connection between said float and said pawl ,for releasing the latter to permit said weight to fall and operate said device, substantially as set forth. 4

1l. In a device of the character described, ad shaft, a drum on said shaft, a weight, suspension means for the latter connected with the drum, a ratchet wheel driven from said shaft, la locking pawl for said ratchet, a water reservoir having a restricted outlet, a float in said reservoir, a' valve for varying the restriction of saidv outlet, a vertical rod controlling said valve,a pointer connected with said rod, a graduated sector in indicative relationship with said pointer, and opera'tive connection between said float and pawl for releasing the latter to permit said weight to fall, substantially as set forth.

12. In a device of the character described,

a shaft, a drum on said shaft, a weight, suspension means forthe latterconnected with said drum, an audible signaling device, a trigger in the path of said Weight adapted between said shaft and Said brake, a ratchet tween said float and said paWl for releasing the latter to permit said Weight to fall, substantially as set forth.

In testimony that We claim the foregoing 15 as our invention, We have signed our names in presence of tWp subscribing Witnesses.

EUGENE LOUIS COLLON. GEORGES TABARD. Witnesses: p

MARIN VAciHoN, EUGNE LAURIOD.

to sound said signaling device,oa brake on said hydro-extractor, operative connection Wheel driven from said shaft, a locking pavvl for said ratchet, a Water reservoir having a restricted outlet, a float in said reservoir, a valve for varying the restriction of said ontlet, a vertical rod controlling said valve, a pointer connected With said rod, a graduated sector in indicative relationship With said pointer, and operative connection beve cents each, by addressing the Commissioner of Batents, Washington, D. C.

Copies of this patent may be obtained for 

